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A circular coil of radius 'r' having N t...

A circular coil of radius 'r' having N turns carries a current ''I''. What is its magnetic moment ?

Text Solution

Verified by Experts

Magnetic moment (M)=N I A
`M=N I (pi r^(2))" "(because A = pi r^(2))`
`therefore" "M= pi N I r^(2)`
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